參數(shù)資料
型號(hào): UPD720110
廠商: NEC Corp.
英文描述: MOS INTEGRATED CIRCUIT
中文描述: 馬鞍山集成電路
文件頁數(shù): 16/32頁
文件大小: 405K
代理商: UPD720110
Data Sheet S15737EJ5V0DS
16
μ
PD720110A
AC Characteristics (V
DD
= 3.14 to 3.46 V, T
A
= 0 to +70
°
C)
USB Interface Block
(1/4)
Parameter
Symbol
Conditions
MIN.
MAX.
Unit
Low-speed Electrical Characteristics
Rise time (10% to 90%)
t
LR
C
L
= 50 pF to 150 pF,
R
S
= 36
75
300
ns
Fall time (90% to 10%)
t
LF
C
L
= 50 pF to 150 pF,
R
S
= 36
75
300
ns
Differential rise and fall time matching
t
LRFM
(t
LR
/t
LF
)
Note
80
125
%
Low-speed data rate
t
LDRATHS
Average bit rate
1.49925
1.50075
Mbps
Hub differential data delay (Figure 2-9)
t
LHDD
300
ns
Hub differential driver jitter (including cable)
(Figure 2-9):
Downstream facing port
To next transition
For paired transitions
Upstream facing port
To next transition
For paired transitions
t
LDHJ1
t
LDHJ2
t
LUHJ1
t
LUHJ2
45
45
45
15
+
45
+
45
+
45
+
15
ns
ns
ns
ns
Data bit width distortion after SE0 (Figure
2-9)
t
LSOP
60
+
60
ns
Hub EOP delay relative to THDD (Figure
2-10)
t
LEOPD
0
200
ns
Hub EOP output width skew (Figure 2-10)
t
LHESK
300
+
300
ns
Full-speed Electrical Characteristics
Rise time (10% to 90%)
t
FR
C
L
= 50 pF,
R
S
= 36
4
20
ns
Fall time (90% to 10%)
t
FF
C
L
= 50 pF,
R
S
= 36
4
20
ns
Differential rise and fall time matching
t
FRFM
(t
FR
/t
FF
)
90
111.11
%
Full-speed data rate
t
FDRATHS
Average bit rate
11.9940
12.0060
Mbps
Frame interval
t
FRAME
0.9995
1.0005
ms
Consecutive frame interval jitter
t
RFI
No clock adjustment
42
ns
Source jitter total (including frequency
tolerance) (Figure 2-11):
To next transition
For paired transitions
t
DJ1
t
DJ2
Note
3.5
4.0
+
3.5
+
4.0
ns
ns
Source jitter for differential transition to
SE0 transition (Figure 2-12)
t
FDEOP
2
+
5
ns
Note
Excluding the first transition from the Idle state.
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